Ring Main Unit Air Insulated Switchgear Rmu Switchgear Load Break Switch Rmu Rmu Panel Air Insulated Ring Main Unit Xgn15-36 Air Insulated Rmu (Fixed Type)

The XGN15-12/24/36 is a fixed-type indoor air insulated ring main unit (RMU) designed for rated voltages of 12kV, 24kV, and 36kV, with rated current up to 630A. It is primarily used in ring power supply networks and radial distribution systems for power control and protection.

The XGN15 can be configured with two types of load switches: the FLN36-12D SF6 gas-insulated load switch or the FLRN36-12D load switch and fuse combination unit. Both options offer maintenance-free operation, light operating force, and reliable interlocking. The SF6 load switch is particularly suited to applications requiring long mechanical endurance (up to 5,000 operations at 12kV and 24kV)

The XGN15 ring main unit complies with four key standards: GB3906 (3~35kV AC metal-enclosed switchgear), GB/T11022 (common technical requirements for high-voltage switchgear and control equipment), IEC298 (AC metal-enclosed switchgear for rated voltages above 1kV up to 52kV), and DL/T404 (indoor AC high-voltage switchgear ordering technical specifications). These certifications ensure the product meets both domestic and international procurement and engineering approval requirements.

The XGN15 is designed for indoor installation in environments meeting the following conditions: ambient temperature between minus 15 deg C and plus 40 deg C; altitude not exceeding 1000m; relative humidity with daily average not exceeding 95% and monthly average not exceeding 90%; seismic intensity not exceeding Grade 8; and no significant pollution from dust, combustible gases, or corrosive substances.

Yes. The XGN15 air insulated RMU is specifically designed to serve as the high-voltage switching and protection unit within compact prefabricated substations (such as the ZBW-12/0.4 European-type outdoor substation). In this configuration, the XGN15 handles ring network switching, fault isolation, and load control on the HV side, while the transformer and low-voltage distribution panel are integrated in the same enclosure.